, and governor romney has embraced everything i can see. i don't want to say anything in the debate that's not completely analyst. >> reporter: so what are the biggest strengths? experts say for ryan it's his ability to talk in detail. and for biden, his ability to talk to people. >> he's fast on the cuff, he's a witty guy, he knows who he is, and he's been doing nr 40 years. so you're not goimgts to rattle joe biden. joe is very good on the attack. joe is ver good at trying to confuse the issues. >> reporter: when it comes to advice for the candidates -- >> try to be comfortable, rests, smile from time too time. >> reporter: and a little humor can help. >> i can see my wife and i'm sure she's thinking gee, i wish he would go out into the private sector. >> i can help you do that, joe. >> the candidates stayed clear of talking guns at last week's debate and an aurora shooting survivor is speaking out. he said concepting out showed a real lack of respect. plus fox news host bill o'reilly and jon stewart battle it out in a debate of their own